A research scientist estimates that the human body contains 88 pounds of water for every 100 pounds of body weight. At this rate, estimate the number of pounds of water in a college student who weighs 225 pounds.
? lb
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (queelius):
Any ideas?
OpenStudy (anonymous):
no i am very confused about this question
OpenStudy (queelius):
What percentage of 100 is 88?
OpenStudy (anonymous):
88%
OpenStudy (queelius):
Yes. And we are given that the water weight is always 88% of the total weight, whatever that weight might be.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes
OpenStudy (queelius):
So, what is 88% of 225?
OpenStudy (anonymous):
198%
OpenStudy (queelius):
88% of 225 pounds is 196 pounds, yes. (Note that it's not 198%, but 198 pounds.)
OpenStudy (anonymous):
ohhh i c i understand
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (queelius):
Good. :)
OpenStudy (anonymous):
so its just 196 pounds?
OpenStudy (anonymous):
196 lbs
OpenStudy (queelius):
Yes. I imagine you would find the question a lot easier to answer if, for instance, the question was, "Half the total weight of a person is water weight." Then, instead of 88%, we just take 50%, or one-half, of the total weight.
OpenStudy (anonymous):
ya it was not that hard and thank you :)
Still Need Help?
Join the QuestionCove community and study together with friends!